red river Posted April 14, 2024 Report Posted April 14, 2024 I have a Delta 40-694 scroll saw. I recently cut some 1 in. Circles in 3/4 in pine and noticed that the "plug" of wood that I removed was tapered in a conical shape. It is not pronounced but I believe it tells me something is not right with my blade setup. Does anyone have any insight into what might need adjusting .....Thanx......forrest OCtoolguy 1 Quote
Farmerdon Posted April 14, 2024 Report Posted April 14, 2024 I also have a Delta 40-694. Check to see if your table is square with the saw blade, a perfect 90 degrees. Don't feed too fast on that thick of wood. Hope that helps. OCtoolguy, New Guy, JJB and 1 other 4 Quote
dgman Posted April 14, 2024 Report Posted April 14, 2024 The three most important factors is 1: the blade must be perfectly square to the table. You need a small square to square up the table. A credit card will work in a pinch. 2: Tension. You need as much tension on the blade as you can get. You want to hear a high “ping” when you pluck the blade. You may need to clean off the tips of the thumb screws and the back up screw. 3: make sure you don’t apply lateral pressure on the blade when cutting. Look straight on the blade, if it is bending while making your turn, the cut will be beveled. MarieC and OCtoolguy 2 Quote
Ctutor Posted April 14, 2024 Report Posted April 14, 2024 if the "taper" is the same all the way around then I agree with others that the table is not at 90 degrees to the blade.. a nudge is all that it takes. OCtoolguy and MarieC 2 Quote
Hawk Posted April 14, 2024 Report Posted April 14, 2024 An easy to check for the blade square to the table. Take a piece of scrap, I use at least ¾ , cut about a blades width into the wood. Pull it out, move it around to the back of the blade, if it's square the blade will slip right into the cut you made, if not it'll show which way and how much it's off. OCtoolguy 1 Quote
red river Posted April 14, 2024 Author Report Posted April 14, 2024 I recently had the table off of the saw, messing with the set screws on the blade holder. I betcha you a buck that I did not square it up properly. I'll square that bad boy up. Thanx for the replies. MarieC, Wichman and OCtoolguy 2 1 Quote
Denny Knappen Posted April 15, 2024 Report Posted April 15, 2024 I also find that blade slippage can be a problem. After I apply tension, I release tension and if there is a bow in the blade, the is blade slippage. MarieC, OCtoolguy and flarud 2 1 Quote
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